High-Temperature Non-Skid Coating Composition

Abstract

One embodiment relates to a coating composition, comprising a novolac epoxy resin comprising silicon carbide powder; an amine curing agent, said agent comprising at least a cycloaliphatic amine; a hydrophobic silica thixotrope agent; and an aluminum oxide powder having the following mesh retention characteristics, based on the weight of the aluminum oxide powder: about 0 wt. % size 10 mesh, ≧ about 5 wt. % size 16 mesh, ≧ about 20 wt. % size 18 mesh, ≧ about 10 wt. % size 20 mesh, and ≦ about 5 wt. % size 30 mesh. Other embodiments relate to making and using the coating composition, and coatings made from the coating composition.

1 . A coating composition, comprising:
 a novolac epoxy resin comprising silicon carbide powder;   an amine curing agent, said agent comprising at least a cycloaliphatic amine;   a hydrophobic silica thixotrope agent; and   an aluminum oxide powder having the following mesh retention characteristics, based on the weight of the aluminum oxide powder:
 about 0 wt. % size 10 mesh, 
 ≧ about 5 wt. % size 16 mesh, 
 ≧ about 20 wt. % size 18 mesh, 
 ≧ about 10 wt. % size 20 mesh, and 
 ≦ about 5 wt. % size 30 mesh. 
   
     
     
         2 . The composition of  claim 1 , comprising about 30-70 wt. % of the novolac epoxy resin. 
     
     
         3 . The composition of  claim 1 , comprising about 40-60 wt. % of the novolac epoxy resin. 
     
     
         4 . The composition of  claim 1 , comprising about 45-55 wt. % of the novolac epoxy resin. 
     
     
         5 . The composition of  claim 1 , comprising about 1-15 wt. % of the amine curing agent. 
     
     
         6 . The composition of  claim 1 , comprising about 2-10 wt. % of the amine curing agent. 
     
     
         7 . The composition of  claim 1 , comprising about 3-7 wt. % of the amine curing agent. 
     
     
         8 . The composition of  claim 1 , comprising about 0.05-5 wt. % of the hydrophobic silica thixotrope agent. 
     
     
         9 . The composition of  claim 1 , comprising about 0.1-5 wt. % of the hydrophobic silica thixotrope agent. 
     
     
         10 . The composition of  claim 1 , comprising about 0.5-2 wt. % of the hydrophobic silica thixotrope agent. 
     
     
         11 . The composition of  claim 1 , comprising about 20-60 wt. % of the aluminum oxide powder. 
     
     
         12 . The composition of  claim 1 , comprising about 25-55 wt. % of the aluminum oxide powder. 
     
     
         13 . The composition of  claim 1 , comprising about 30-50 wt. % of the aluminum oxide powder. 
     
     
         14 . The composition of  claim 1 , comprising about:
 30-70 wt. % of the novolac epoxy resin;   1-15 wt. % of the amine curing agent;   0.05-5 wt. % of the hydrophobic silica thixotrope; and   20-60 wt. % of the aluminum oxide powder.   
     
     
         15 . A non-skid coating, comprising the cured product of the composition of  claim 1 . 
     
     
         16 . A method of coating a surface, comprising applying the composition of  claim 1  to the surface and allowing to cure. 
     
     
         17 . A surface, comprising the non-skid coating of  claim 15  thereon. 
     
     
         18 . The surface of  claim 17 , further comprising a primer coat between the coating and the surface. 
     
     
         19 . A kit for coating, comprising:
 (a) a resin package, comprising:
 a novolac epoxy resin comprising silicon carbide powder; 
 a hydrophobic silica thixotrope agent; 
 an aluminum oxide powder having the following mesh retention characteristics, based on the weight of the aluminum oxide powder:
 about 0 wt. % size 10 mesh, 
 ≧ about 5 wt. % size 16 mesh, 
 ≧ about 20 wt. % size 18 mesh, 
 ≧ about 10 wt. % size 20 mesh, and 
 ≦ about 5 wt. % size 30 mesh; and 
 
   (b) a curing agent package, comprising:
 an amine curing agent, said curing agent comprising at least a cycloaliphatic amine. 
   
     
     
         20 . A method of coating a surface, comprising:
 contacting the contents of the resin package (a) of  claim 19  with the contents of the curing agent package (b) of  claim 19 , mixing, and applying to a surface.   
     
     
         21 . A non-skid coating, comprising:
 a thermal barrier coat comprising a metallic bond coat and a yttria-stabilized topcoat in contact with the metallic bond coat; and   a non-skid epoxy coat in contact with the yttria-stabilized topcoat.